<span>Identify the organ that produces sperm.
</span>The male reproductive system includes the scrotum, testes, spermatic ducts, sex glands, and penis. These organs work together to produce sperm, the male gamete, and the other components of semen.
Answer:
Explanation:
protection
1. It protects our internal organs.
2.The skull protects the brain; the thorax (sternum, ribs and spine) protects the heart, lungs and other viscera
muscle attachment:
1. attach many skeletal muscles across joints
2. when one muscle flexes (or contracts) the other relaxes
movement (at joints);
1. when one muscle flexes (or contracts) the other relaxes
2.movement of limbs, and stability, such as the stability found in the bones of the skull.
storing calcium and phosphorous:
1.The bone stores 99% of the body's calcium and 85% of the phosphorus.
2.If blood calcium gets too high or too low, the muscles and nerves will not function.
blood cells and platelets production:
1.Red blood cells, most white blood cells, and platelets are produced in the bone marrow, the soft fatty tissue inside bone cavities.
<span> C.) allows you to choose the right types of activities to improve a particular fitness element.</span>
Things in motion tend to stay in motion, things at rest tend to stay at rest. Your brain never slowed down to the point where it would get tired to sleep. If you were laying in bed trying to sleep all night but couldn't that could be a medical disorder but if you were doing things you're fine
